package com.cyou.util;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public final class MD5
{

    public MD5()
    {
    }

    public static final String encode(byte[] s)
    {
        char hexDigits[] = {
            '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 
            'a', 'b', 'c', 'd', 'e', 'f'
        };
        char str[];
        byte strTemp[] = s;
        try {
			MessageDigest mdTemp = MessageDigest.getInstance("MD5");
			mdTemp.update(strTemp);
			byte md[] = mdTemp.digest();
			int j = md.length;
			str = new char[j * 2];
			int k = 0;
			for(int i = 0; i < j; i++)
			{
			    byte byte0 = md[i];
			    str[k++] = hexDigits[byte0 >>> 4 & 0xf];
			    str[k++] = hexDigits[byte0 & 0xf];
			}

			return new String(str);
		} catch (NoSuchAlgorithmException e) {
			throw new RuntimeException("");
		}
    }

    public static void main(String args[])
    {
        System.out.println();
    }
}